Size of the wires can be measured normally by standard wire gauge (SWG). Which instrument must be used for accurate measurements of wire size ?

24) Normally metals are good conductor of electricity. Which is the good conductor in terms of conductivity ?

25) We find, for a required current carrying capacity, aluminium conductor is larger in cross sectional area than copper. The reason for this is

26) 7/1.40 is the specification of the one stranded conductor. What does the denominator indicate in the above specification ?

27) The material that have only few electrons and are incapable of flowing current is